MyBook World Edition II Drive Letters

I have a failed drive on World Edition II (White Light). Appreciate any help with a couple of quick questions:

  1. I assume that HDD 1 corresponds to the drive labelled ‘A’ in the enclosure?

  2. It was set up as a mirrored RAID. If I remove drive ‘A’ will the mirrored data still be accessible?

Hoping that by removing the drive it will speed up a little!